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<a href="#pub-methods">Public Member Functions</a> &#124;
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<p>Sample used in vector fields.  
 <a href="class_qwt_vector_field_sample.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__samples_8h_source.html">qwt_samples.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a42baed10f078f291bb888c30fdb5340f"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#a42baed10f078f291bb888c30fdb5340f">QwtVectorFieldSample</a> (double <a class="el" href="class_qwt_vector_field_sample.html#ac5fb73df88676e3469f0113db40b8935">x</a>=0.0, double <a class="el" href="class_qwt_vector_field_sample.html#a0e60522aea7d65d8340d691f797ddeb9">y</a>=0.0, double <a class="el" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a>=0.0, double <a class="el" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a>=0.0)</td></tr>
<tr class="memdesc:a42baed10f078f291bb888c30fdb5340f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor.  <a href="class_qwt_vector_field_sample.html#a42baed10f078f291bb888c30fdb5340f">More...</a><br /></td></tr>
<tr class="separator:a42baed10f078f291bb888c30fdb5340f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afed31ff0b99fd6baa4cba286ec8a259f"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#afed31ff0b99fd6baa4cba286ec8a259f">QwtVectorFieldSample</a> (const QPointF &amp;<a class="el" href="class_qwt_vector_field_sample.html#a5bb3f6e351f1019b9ea330a0a90c0395">pos</a>, double <a class="el" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a>=0.0, double <a class="el" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a>=0.0)</td></tr>
<tr class="memdesc:afed31ff0b99fd6baa4cba286ec8a259f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor.  <a href="class_qwt_vector_field_sample.html#afed31ff0b99fd6baa4cba286ec8a259f">More...</a><br /></td></tr>
<tr class="separator:afed31ff0b99fd6baa4cba286ec8a259f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5bb3f6e351f1019b9ea330a0a90c0395"><td class="memItemLeft" align="right" valign="top">QPointF&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#a5bb3f6e351f1019b9ea330a0a90c0395">pos</a> () const</td></tr>
<tr class="separator:a5bb3f6e351f1019b9ea330a0a90c0395"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8414f5ce56525413f83bb689a1bb1c79"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#a8414f5ce56525413f83bb689a1bb1c79">isNull</a> () const</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:ac5fb73df88676e3469f0113db40b8935"><td class="memItemLeft" align="right" valign="top"><a id="ac5fb73df88676e3469f0113db40b8935"></a>
double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#ac5fb73df88676e3469f0113db40b8935">x</a></td></tr>
<tr class="memdesc:ac5fb73df88676e3469f0113db40b8935"><td class="mdescLeft">&#160;</td><td class="mdescRight">x coordinate of the position <br /></td></tr>
<tr class="separator:ac5fb73df88676e3469f0113db40b8935"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0e60522aea7d65d8340d691f797ddeb9"><td class="memItemLeft" align="right" valign="top"><a id="a0e60522aea7d65d8340d691f797ddeb9"></a>
double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#a0e60522aea7d65d8340d691f797ddeb9">y</a></td></tr>
<tr class="memdesc:a0e60522aea7d65d8340d691f797ddeb9"><td class="mdescLeft">&#160;</td><td class="mdescRight">y coordinate of the position <br /></td></tr>
<tr class="separator:a0e60522aea7d65d8340d691f797ddeb9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aabefe04201a2d6b1d55228dee122771a"><td class="memItemLeft" align="right" valign="top"><a id="aabefe04201a2d6b1d55228dee122771a"></a>
double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a></td></tr>
<tr class="memdesc:aabefe04201a2d6b1d55228dee122771a"><td class="mdescLeft">&#160;</td><td class="mdescRight">x coordinate of the vector <br /></td></tr>
<tr class="separator:aabefe04201a2d6b1d55228dee122771a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af219932e3a663f55b9a3a785f58cf86c"><td class="memItemLeft" align="right" valign="top"><a id="af219932e3a663f55b9a3a785f58cf86c"></a>
double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a></td></tr>
<tr class="memdesc:af219932e3a663f55b9a3a785f58cf86c"><td class="mdescLeft">&#160;</td><td class="mdescRight">y coordinate of the vector <br /></td></tr>
<tr class="separator:af219932e3a663f55b9a3a785f58cf86c"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Sample used in vector fields. </p>
<p>A vector field sample is a position and a vector - usually representing some direction and magnitude - attached to this position.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_vector_field_data.html" title="Interface for iterating over an array of vector field samples.">QwtVectorFieldData</a> </dd></dl>

<p class="definition">Definition at line <a class="el" href="qwt__samples_8h_source.html#l00243">243</a> of file <a class="el" href="qwt__samples_8h_source.html">qwt_samples.h</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a42baed10f078f291bb888c30fdb5340f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a42baed10f078f291bb888c30fdb5340f">&#9670;&nbsp;</a></span>QwtVectorFieldSample() <span class="overload">[1/2]</span></h2>

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          <td class="memname">QwtVectorFieldSample::QwtVectorFieldSample </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>posX</em> = <code>0.0</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>posY</em> = <code>0.0</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>vectorX</em> = <code>0.0</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>vectorY</em> = <code>0.0</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>Constructor. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">posX</td><td>x coordinate of the position </td></tr>
    <tr><td class="paramname">posY</td><td>y coordinate of the position </td></tr>
    <tr><td class="paramname">vectorX</td><td>x coordinate of the vector </td></tr>
    <tr><td class="paramname">vectorY</td><td>y coordinate of the vector </td></tr>
  </table>
  </dd>
</dl>

<p class="definition">Definition at line <a class="el" href="qwt__samples_8h_source.html#l00277">277</a> of file <a class="el" href="qwt__samples_8h_source.html">qwt_samples.h</a>.</p>

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<a id="afed31ff0b99fd6baa4cba286ec8a259f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afed31ff0b99fd6baa4cba286ec8a259f">&#9670;&nbsp;</a></span>QwtVectorFieldSample() <span class="overload">[2/2]</span></h2>

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          <td>(</td>
          <td class="paramtype">const QPointF &amp;&#160;</td>
          <td class="paramname"><em>pos</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>vectorX</em> = <code>0.0</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>vectorY</em> = <code>0.0</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Constructor. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">pos</td><td>Position </td></tr>
    <tr><td class="paramname">vectorX</td><td>x coordinate of the vector </td></tr>
    <tr><td class="paramname">vectorY</td><td>y coordinate of the vector </td></tr>
  </table>
  </dd>
</dl>

<p class="definition">Definition at line <a class="el" href="qwt__samples_8h_source.html#l00293">293</a> of file <a class="el" href="qwt__samples_8h_source.html">qwt_samples.h</a>.</p>

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<h2 class="groupheader">Member Function Documentation</h2>
<a id="a8414f5ce56525413f83bb689a1bb1c79"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8414f5ce56525413f83bb689a1bb1c79">&#9670;&nbsp;</a></span>isNull()</h2>

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          <td class="memname">bool QwtVectorFieldSample::isNull </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
        </tr>
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<dl class="section return"><dt>Returns</dt><dd>true, if vx and vy are 0 </dd></dl>

<p class="definition">Definition at line <a class="el" href="qwt__samples_8h_source.html#l00309">309</a> of file <a class="el" href="qwt__samples_8h_source.html">qwt_samples.h</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a5bb3f6e351f1019b9ea330a0a90c0395">&#9670;&nbsp;</a></span>pos()</h2>

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          <td class="memname">QPointF QwtVectorFieldSample::pos </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>x/y coordinates as QPointF </dd></dl>

<p class="definition">Definition at line <a class="el" href="qwt__samples_8h_source.html#l00303">303</a> of file <a class="el" href="qwt__samples_8h_source.html">qwt_samples.h</a>.</p>

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